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Polaris Australis

HIP 104382; Sigma Oct

HIP 104382; Sigma Oct Star Oct Visible Level 2 Small telescope (4")
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Physical Properties

Magnitude 5.47
Variable Type Delta Scuti (Pulsating)
Spectral Type F0III
Star Color Yellow-white (B-V 0.27)
Temperature 6062 K
Radius 37.6 R☉
Distance 322.9 ly

Position & Identifiers

RA 21h 08m 46.2s
Dec -88° 57' 23.0"
Constellation Oct
HR 7228
HIP 104382
Bayer Sigma
Variable ID Sig Oct

Visibility

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Size Comparison

Stellar Lifecycle

Spectral Classification

Hertzsprung-Russell Diagram

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Blackbody Spectrum

Stellar Absorption Spectrum

Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.

Stellar Notes

Delta Sct, amp. 0.05V, 0.04B, 0.097d.
Polaris Australis (so called by Wollaston in 1789).

Survey Image

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